题目内容
20．spent，the homework，an hour，more than，I，yesterday，on （连词成句）I spent more than an hour on the homework yesterday．（或yesterday放开头）．．
分析 翻译：昨天，我花了一个多小时做家庭作业．
解答 答案：I spent more than an hour on the homework yesterday．（或yesterday放开头）．
所给单词I，我，作主语，spent是动词表示花费，作谓语，spend的主语必须是人，常用句型sb spend time on sth．某人在…上花费时间，后可直接加时间more than an hour，作宾语，故I spent more than an hour on the homework家庭作业，yesterday表示昨天放句末作状语，故答案为I spent more than an hour on the homework yesterday．（或yesterday放开头）．
点评 分清主谓宾，只有动词才充当谓语，本题就是找到谓语spent即可，分析所给单词，含义以及用法，最终结合成一个句子．
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